Patent · US Active

Method for regenerating a particulate filter in the exhaust system of a gasoline engine

US10907518B2 · kind B2 · utility

1Cited by

0References

11Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Sebastian Heinken · Braunschweig, DE
Tim Thaler · Hannover, DE
Pierre Misiek · Burgdorf, DE
Christian Steinbrecher · Wismar, DE

Key dates

Filing date	Jul 24, 2019
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Jul 24, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method for regenerating a particulate filter in an exhaust system of an internal combustion engine, wherein it is thereby provided that the quantity of overrun air in the overrun operation of the combustion engine be adapted to the air required for oxidizing the soot trapped in the particulate filter to achieve a rapid and efficient regeneration of the particulate filter, and it is provided that a throttle valve be opened in overrun operation to an extent that allows a maximum permissible soot conversion without risking thermal damage to the particulate filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.